[XeTeX] xetex tiles incorrectly with the wallpaper package

[Neal Becker]

kmc wrote:

> Hi there,
> 
> I recently came across this problem when using wallpaper.sty to tile some
> seamless pattern image to construct a background.
> 
> Here's a minimal example
> ====
> \documentclass[titlepage]{book}
> \usepackage[T1]{fontenc}
> \usepackage{wallpaper}
> \begin{document}
> \title{A pattern tiling test}
> \pagestyle{empty}
> \ThisTileSquareWallPaper{5}{greyu.png}
> \color{white}
> \maketitle
> \end{document}
> ====
> 
> The image 'greyu.png' is hosted here (you can use your own, of course):
> http://img193.imageshack.us/img193/9995/greyu.png
> 
> Here are my test result:
> 1. Compile this file using pdflatex, the resulting pdf looks good
> 2. Using xelatex, not so good. First, the page has not been wholly tiled,
> leaving
> a white space at the bottom. Secondly, when zooming the pdf to at least
> 600%,
> I saw white lines around the tile patterns, which means the images are not
> seamlessly tiled, maybe xetex add some white spaces around them.
> 
> Tested on:  Windows 2000, TeX Live 2009 recent beta version,
> TeX 3.1415926 (Web2C 2009)
> kpathsea version 5.0.0
> 
> xelatex version 3.1415926-2.2-0.9995.2 (Web2C 2009)
> 
> Please help, thanks in advance!
> --
> kmc

Same result here fedora f11
This is XeTeX, Version 3.1415926-2.2-0.9995.2 (Web2C 2009)